dcsimg
Login | Register   
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: C++
Expertise: Intermediate
Jul 19, 2001

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Declaring Destructors Virtual


Writing basic classes needs no more definition from the programmer than just declaring a few member functions and variables. But, what if you needed to design a class that was derived from other classes and you wanted to invoke polymorphism with the class instantiation? You would always need to declare the destructor virtual, no exceptions. Failure to do so causes your program to create a memory leak. Rule of the thumb: Always declare destructors virtual when deriving.

For example:
 
class SomeClass {
public:
   SomeClass();
   virtual ~SomeClass();
private:
   // data here
}
Sophy Pal
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date